US3335230A - Equipment for verifying line concentration circuit operations - Google Patents

Equipment for verifying line concentration circuit operations Download PDF

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Publication number
US3335230A
US3335230A US344980A US34498064A US3335230A US 3335230 A US3335230 A US 3335230A US 344980 A US344980 A US 344980A US 34498064 A US34498064 A US 34498064A US 3335230 A US3335230 A US 3335230A
Authority
US
United States
Prior art keywords
equipment
office
circuit operations
verifying line
line concentration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US344980A
Inventor
John F Rettig
Nelson A Riedel
Jr Uberto K Stagg
Allan R Traumbull
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Bell Telephone Laboratories Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US344980A priority Critical patent/US3335230A/en
Application granted granted Critical
Publication of US3335230A publication Critical patent/US3335230A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/0004—Selecting arrangements using crossbar selectors in the switching stages

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Monitoring And Testing Of Exchanges (AREA)

Description

Aug. 8, 1967 J. F. RETTIG ETAL 3,335,230 EQUIPMENT FOR VERIFYING LINE CONCENTR ATOR CIRCUIT OPERATIONS 51 Sheets-Sheet 2 Filed Feb. 14, 1964 t2: mCoSmE mobmzmo xuod 3 mm. mobmha 1. NE 56% #4828 N: O W 56% $94.3 1 86m mm a A $25382 $55 P m w:
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Aug. 8, 1967 J. F. RETTIG ETAL 3,335,230
EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS 51 Sheets-Sheet 6 Filed Feb. 14, 1964 Aug. 8, 1967 J. F. RETTIG ET AL 3,335,230
EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS 61 heets-Sheet 9 Filed Feb. 14, 1964 uomiuo uwaum H naw 08% owmmuw 216m 558 55% 55% :253 N 55% ENE 63E 836w 625% SE m o H H H m m m 3 Q .U\..\ 32mg 32% umbw 558 325% 05m: a? 3 32% U5 Ew OER U? Aug. 8, 1967 J, RETTlG ET AL 3,335,230
EQUIPMENT FOR VERIFYING LINE CONSENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964 Sheets-Sheet l2 h. 63 IT I I $5 2; U H 35% 8 :w: 3 9; 2m; 3%: x52 w IT 9% at: W i 351 I -51 5 23 NE 5 W f 52 0.52 232 32 $6 33 :m: 3; 9cm 5:: ox; com; I N251 b 3 aim P 11 &% 3 2 5v Elia: W 5m mg g I u 2:2 32 Q Q8 U; U 2: Q 5: f n I h :21 I M 5% W52 {:21 I w? W T@ 2; 93 Sq 0 Q 55 32 1 H 1M 32 52 1 :75 N33 T 1 \5: I In I 1 (SEE I N? 2; 1 WTW H 2; 3 1%: W E 8v iam E@ 32 -52 22 i r p J 8v s U U 3 3w D V Mm; So 2:: 3: 2a
Aug. 8, 1967 RETTK; ET AL EQUIPMENT FOR VERIFYING LINE CON CENTRATOR CIRCUIT OPERATIONS 1' heets-Shae Filed Feb. 1.4, 1964 umt omw MMVWS 3,335,230 CENTRATOR Aug. 8, 1967 J T'n ET AL EQUIPMENT FOR VERIFYING LINE CON CIRCUIT OPERATIONS Sheets-sheet 1 4 Filed Feb. 14,. 1954 ulxu: f
85: l p J; L J: U522 ta: 685% r U38 8%: J88 H825 J H SW: Z: 5%:
E: OE: 05m; m Mm 9 822 m8 I w 1v 22E V I. 4 V H w 2 0 J vb? O m ,I U252 E: U2: U5 U31} Em 2:: U2: 6Q
Aug. 8, 1967 -rn ET AL 3,335,230
EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964 61 SheGtS-Sheet i8 NEE: m #1 9mm v OMSQ 596w v wiwumm m u Iv. ch52 i m @8035 .hzmmwma u i205 o woo mmiwuwm NE H m F bl Sheets-shat 1r) .lll' ll uouzH:
J. F RETTIG ET AL CIRCUIT OPERATIONS EQUIPMENT FOR VERIFYING LINE CONCENTRATOE Aug. 8, 1967 Filed Feb. 14, 1964 up: W629 652 mm 5Q Ems U39 .ll 32 Jfi 8 2 22m 82$ Q 6R Aug. 8, 1967 J. F. RETTIG ET AL EQUIPMENT FOR VERIFYING LINE CONCENTRATOR CIRCUIT OPERATIONS Filed Feb. 14, 1964

Claims (1)

1. A TELEPHONE LINE CONCENTRATOR SYSTEM INCLUDING A TELEPHONE CENTRAL OFFICE, A PLURALITY OF REMOTE SUBSTATION LINES, A LESSER PLURALITY OF TRUNKS EXTENDING FROM SAID OFFICE, REMOTE SWTICHING MEANS FOR COUPLING SAID LINES TO SAID TRUNKS UNDER CONTROL OF SAID OFFICE, AND MEANS IN SAID REMOTE SWITCHING MEANS RESPONSIVE TO SIGNALS FROM SAID OFFICE INDICATIVE OF THE SELECTION OF A PARTICULAR TRUNK FOR CONNECTION TO A SERVICE REQUESTING LINE FOR CONNECTING SAID LINE TO SAID TRUNK AND TRANSMITTING TO SAID OFFICE THE IDENTITY OF SAID CONNECTED TRUNK.
US344980A 1964-02-14 1964-02-14 Equipment for verifying line concentration circuit operations Expired - Lifetime US3335230A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US344980A US3335230A (en) 1964-02-14 1964-02-14 Equipment for verifying line concentration circuit operations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US344980A US3335230A (en) 1964-02-14 1964-02-14 Equipment for verifying line concentration circuit operations

Publications (1)

Publication Number Publication Date
US3335230A true US3335230A (en) 1967-08-08

Family

ID=23352934

Family Applications (1)

Application Number Title Priority Date Filing Date
US344980A Expired - Lifetime US3335230A (en) 1964-02-14 1964-02-14 Equipment for verifying line concentration circuit operations

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Country Link
US (1) US3335230A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190968A (en) * 1960-10-31 1965-06-22 Bell Telephone Labor Inc Universal remote telephone line concentrator
US3206553A (en) * 1961-08-28 1965-09-14 Pierre M Lucas Telephone traffic concentrator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3190968A (en) * 1960-10-31 1965-06-22 Bell Telephone Labor Inc Universal remote telephone line concentrator
US3206553A (en) * 1961-08-28 1965-09-14 Pierre M Lucas Telephone traffic concentrator

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